CANCEL_DISABLED
(tib->tib_canceled == 0 || (tib->tib_cantcancel & CANCEL_DISABLED)));
(tib->tib_cantcancel & CANCEL_DISABLED))) {
(tib->tib_cantcancel & CANCEL_DISABLED))) {
if ((tib->tib_cantcancel & CANCEL_DISABLED) == 0) {
if (tib->tib_canceled && (tib->tib_cantcancel & CANCEL_DISABLED) == 0)
oldstate = tib->tib_cantcancel & CANCEL_DISABLED ?
tib->tib_cantcancel &= ~CANCEL_DISABLED;
tib->tib_cantcancel |= CANCEL_DISABLED;